Students at Cambridge University typically worked with private tutors to prepare for the notoriously difficult "Tripos" examinations. Pictured here are the students of the well-known tutor E.J. Routh in 1879. Thomson is standing on the right of the back row of four in the doorway; Larmor is on the left end of the row.

Photograph by Hill and Saunders, Cambridge

1997- American Institute of Physics